Suitcase

ABSTRACT

The embodiments of the present disclosure provide a multifunctional suitcase. The suitcase may include a suitcase body and a support mechanism. The support mechanism may be configured to support the suitcase body. The support mechanism may be retractable and/or foldable with respect to the suitcase body. The suitcase according to some embodiments of the present disclosure may be transformed into the table while maintaining its storage function.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No201910106771.1, filed on Feb. 2, 2019, and Chinese Patent ApplicationNo. 201910305680.0, filed on Apr. 16, 2019. Each of the above-referencedapplications is expressly incorporated herein by reference.

TECHNICAL FIELD

This disclosure generally relates to a suitcase, and more particularly,relates to a suitcase with a folding leg and a multifunctional platform.

BACKGROUND

A suitcase is a portable case used to carry items when one goes out.Functions of existing suitcases are relatively simple, and so it isdifficult to meet the needs of traveling.

SUMMARY

According to an aspect of the present disclosure, a suitcase may beprovided. The suitcase may include a suitcase body 1 and a supportmechanism. The support mechanism may be configured to support thesuitcase body 1. The support mechanism may be retractable and/orfoldable with respect to the suitcase body 1.

In some embodiments, at least a portion of the support mechanism may beconfigured as a drawbar of the suitcase.

In some embodiments, the suitcase body 1 may maintain horizontal bysupport of the support mechanism when the suitcase is placed on asurface.

In some embodiments, the support mechanism may include a first supportmechanism 2 and a second support mechanism 3. The first supportmechanism 2 and the second support mechanism 3 may be oppositelyconfigured on a rear surface of the suitcase body 1. The first supportmechanism 2 may be movable to a first position to form a first leg and asecond position to form a drawbar of the suitcase. The second supportmechanism 3 may be movable to a third position to form a second leg ofthe suitcase.

In some embodiments, the first support mechanism 2 may be rotatablyconfigured on the rear surface of the suitcase body 1 via at least onefirst connection limit mechanism 4. The at least one first connectionlimit mechanism 4 may be configured to allow the first support mechanism2 to be rotated to the first position or the second position.

In some embodiments, the first support mechanism 2 may be rotatablyconnected to the at least one first connection limit mechanism 4 via afirst hinge assembly. As used herein, a hinge assembly may include oneor more hinges. For instance, the first hinge assembly as illustrated inFIGS. 2, 4, 5 includes a first pin 445, a second pin 433, a first hingehole 4313, a second hinge hole 221, or the like. The first limitstructure 21 may be configured on the first support mechanism 2. Asecond limit structure 41 and a third limit structure 42 may beconfigured on each of the at least one first connection limit mechanism4. The first limit structure 21 may be configured to cooperate with thesecond limit structure 41 and the third limit structure 42 to allow thefirst support mechanism 2 to be rotated to the first position or thesecond position.

In some embodiments, at least one of the at least one first connectionlimit mechanism 4 may include a rotating bracket 43 and a fixed bracket44. The rotating bracket 43 may be of a U-shape. A first curved part4311 may be formed on the rotating bracket 43. The second limitstructure 41 and the third limit structure 42 may be configured on thefirst curved part 4311. The fixed bracket 44 may be of a U-shape. Thefixed bracket 44 may be fixed to the rear surface of the suitcase body1. The rotating bracket 43 may be rotatably connected to the fixedbracket 44 via a second hinge assembly. The first support mechanism 2may be rotatably connected to the rotating bracket 43 via a third hingeassembly. The first limit structure 21 may be engaged with the secondlimit structure 41 so as to allow the first support mechanism 2 to drivethe rotating bracket 43 to be rotated to the first position.

In some embodiments, at least one of the at least one first connectionlimit mechanism 4 may include an elastic connector 45. A first end ofthe elastic connector 45 may be connected to the rotating bracket 43,and a second end of the elastic connector 45 may be connected to thefixed bracket 44. The first support mechanism 2, the rotating bracket43, and the fixed bracket 44 may be configured to form a stablestructure (e.g., a stable triangle of forces).

In some embodiments, at least one of the at least one first connectionlimit mechanism 4 may include a connection limit base 46 of a U-shape. Asecond curved part 4611 may be formed on the connection limit base 46.The second limit structure 41 and the third limit structure 42 may beconfigured on the second curved part 4611. The connection limit base 46may be fixed on the rear surface of the suitcase body 1. The firstsupport mechanism 2 may be rotatably connected to the connection limitbase 46 via a fourth hinge assembly.

In some embodiments, a fourth limit structure 47 may be configured onthe second curved part 4611. The first limit structure 21 may be engagedwith the fourth limit structure 47 that is configured to maintain thefirst support mechanism 2 in a folded state.

In some embodiments, the first support mechanism 2 may include a firstrod 22 and a second rod 24. The first limit structure 21 may be attachedto the first rod 22 and the second rod 24. A first end of the first rod22 connected to the first limit structure 21 may be rotatably attachedto the rear surface of the suitcase body 1 via one of the at least onefirst connection limit mechanism 4. A first end of the second rod 24connected to the first limit structure 21 may be rotatably configured onthe rear surface of the suitcase body 1 via another one of the at leastone first connection limit mechanism 4. A second end of the first rod 22may be connected to a handle 23. A second end of the second rod 24 maybe connected to the handle 23 such that the first rod 22, the handle 23,and the second rod 24 may form a U-shaped structure.

In some embodiments, the first support mechanism 2 may include a firstreinforcing rod 25. The first reinforcing rod 25 may be configuredbetween the first rod 22 and the second rod 24.

In some embodiments, at least one of the first rod 22 or the second rod24 may be a retractable rod.

In some embodiments, the first limit structure 21 may be retractablyconfigured on the first support mechanism 2. A control component 251 mayfurther be configured on the first support mechanism 2. The controlcomponent 251 may be connected to the first limit structure 21 via agear that is configured to allow the control component 251 to controlextension or retraction of the first limit structure 21.

In some embodiments, the second support mechanism 3 may be rotatablyconfigured on the rear surface of the suitcase body 1 via at least onesecond connection limit mechanism 5. The at least one second connectionlimit mechanism 5 may be configured to allow the second supportmechanism 3 to be rotated to the third position.

In some embodiments, at least one of the at least one second connectionlimit mechanism 5 may have a same structure as at least one of the atleast one first connection limit mechanism 4.

In some embodiments, the second support mechanism 3 may include a firstsupport rod 31 and a second support rod 32. A fifth limit structure 33may be configured on each of a first end of the first support rod 31 anda first end of the second support rod 32, respectively. Each of thefirst end of the first support rod 31 and the first end of the secondsupport rod 32 may be rotatably connected to a corresponding secondconnection limit mechanism 5 via a fifth hinge. A second limit structure41 and a third limit structure 42 may be further configured on each ofthe at least one second connection limit mechanism 5. The fifth limitstructures 33 may be configured to cooperate with the second limitstructure 41 and the third limit structure 42 configured on each of theat least one second connection limit mechanism 5 to allow the secondsupport mechanism 3 to be rotated to the third position via the at leastone second connection limit mechanism 5.

In some embodiments, the second support mechanism 3 may include a secondreinforcing rod 34. The second reinforcing rod 34 may be disposedbetween the first support rod 31 and the second support rod 32.

In some embodiments, when the first support mechanism 2 is in the firstposition, the first support mechanism 2 may form an angle α with respectto the rear surface of the suitcase body 1. When the second supportmechanism 3 is in the third position, the second support mechanism 3 mayform an angle β with respect to the rear surface of the suitcase body 1.α may be different from β such that the suitcase body 1 supported by thefirst support mechanism 2 and the second support mechanism 3 maymaintain horizontal when the suitcase is placed on an inclined surface.

In some embodiments, when the first support mechanism 2 is in the firstposition, the first support mechanism 2 may form an angle α with respectto the rear surface of the suitcase body 1. When the second supportmechanism 3 is in the third position, the second support mechanism 3 mayform an angle β with respect to the rear surface of the suitcase body 1.α may be the same as β such that the suitcase body 1 supported by thefirst support mechanism 2 and the second support mechanism 3 maymaintain horizontal when the suitcase is placed on a horizontal surface.

In some embodiments, the suitcase may further include at least oneextension platform. The extension platform may be configured on thesuitcase body 1 or in the suitcase body 1 in a foldable or extendablemanner.

In some embodiments, the suitcase may further include at least onerolling component 7 configured on a bottom surface of the suitcase body1.

In some embodiments, the support mechanism may include at least twolegs. The at least two legs may be independent of a drawbar of thesuitcase. The at least two legs may be retractable and/or foldable withrespect to the suitcase body 1.

In some embodiments, the support mechanism may include four legs. Thefour legs may be configured at four corners of the suitcase. The fourlegs may be retractable with respect to the suitcase body 1.

In some embodiments, the support mechanism may include a leg. The legmay be configured at a center of a surface of the suitcase body (1).

According to an aspect of the present disclosure, a suitcase may beprovided. The suitcase including a suitcase body 1, a first supportmechanism 2, and a second support mechanism 3. The first supportmechanism 2 and the second support mechanism 3 may be oppositelyconfigured on a rear surface of the suitcase body 1. The first supportmechanism 2 may be movable to a first position to form a first leg ofthe suitcase via at least one first connection limit mechanism 4. Thesecond support mechanism 3 may be movable to a third position to form asecond leg of the suitcase. At least one of the at least one firstconnection limit mechanism 4 may include an elastic connector 45. Afirst end of the elastic connector 45 may be connected to the firstsupport mechanism 2, and a second end of the elastic connector 45 may beconnected to the rear surface of the suitcase body 1. The first supportmechanism 2, and the rear surface of the suitcase body 1 may beconfigured to form a stable structure.

In some embodiments, the first support mechanism 2 may be rotatablyconnected to the at least one first connection limit mechanism 4 via afirst hinge assembly. A first limit structure 21 may be configured onthe first support mechanism 2. A second limit structure 41 and a thirdlimit structure 42 may be configured on each of the at least one firstconnection limit mechanism 4. The first limit structure 21 may beconfigured to cooperate with the second limit structure 41 and the thirdlimit structure 42 to allow the first support mechanism 2 to be rotatedto the first position.

In some embodiments, the first support mechanism 2 may include a firstrod 22 and a second rod 24. The first limit structure 21 may be attachedto the first rod 22 and the second rod 24. A first end of the first rod22 connected to the first limit structure 21 may be rotatably attachedto the rear surface of the suitcase body 1 via one of the at least onefirst connection limit mechanism 4. A first end of the second rod 24connected to the first limit structure 21 may be rotatably configured onthe rear surface of the suitcase body 1 via another one of the at leastone first connection limit mechanism 4. A second end of the first rod 22may be connected to a handle 23. A second end of the second rod 24 maybe connected to the handle 23 such that the first rod 22, the handle 23,and the second rod 24 may form a U-shaped structure.

In some embodiments, the first support mechanism 2 may include a firstreinforcing rod 25. The first reinforcing rod 25 may be configuredbetween the first rod 22 and the second rod 24.

In some embodiments, at least one of the first rod 22 or the second rod24 may be a retractable rod.

In some embodiments, the first limit structure 21 may be retractablyconfigured on the first support mechanism 2. A control component 251 maybe further configured on the first support mechanism 2. The controlcomponent 251 may be connected to the first limit structure 21 via agear that is configured to allow the control component 251 to controlextension or retraction of the first limit structure 21.

In some embodiments, the second support mechanism 3 may be rotatablyconfigured on the rear surface of the suitcase body 1 via at least onesecond connection limit mechanism 5. The at least one second connectionlimit mechanism 5 may be configured to allow the second supportmechanism 3 to be rotated to the third position.

In some embodiments, at least one of the at least one second connectionlimit mechanism 5 may have a same structure as at least one of the atleast one first connection limit mechanism 4.

In some embodiments, the second support mechanism 3 may include a firstsupport rod 31 and a second support rod 32. A fifth limit structure 33may be configured on each of a first end of the first support rod 31 anda first end of the second support rod 32, respectively. Each of thefirst end of the first support rod 31 and the first end of the secondsupport rod 32 may be rotatably connected to a corresponding secondconnection limit mechanism 5 via a hinge. A second limit structure 41and a third limit structure 42 may be further configured on each of theat least one second connection limit mechanism 5. The fifth limitstructures 33 may be configured to cooperate with the second limitstructure 41 and the third limit structure 42 configured on each of theat least one second connection limit mechanism 5 to allow the secondsupport mechanism 3 to be rotated to the third position via the at leastone second connection limit mechanism 5.

In some embodiments, the second support mechanism 3 may include a secondreinforcing rod 34. The second reinforcing rod 34 may be disposedbetween the first support rod 31 and the second support rod 32.

In some embodiments, the first support mechanism 2 may be movable to asecond position to form a drawbar of the suitcase.

In some embodiments, when the first support mechanism 2 is in the firstposition, the first support mechanism 2 may form an angle α with respectto the rear surface of the suitcase body 1. When the second supportmechanism 3 is in the third position, the second support mechanism 3 mayform an angle β with respect to the rear surface of the suitcase body 1.α is different from β such that the suitcase body 1 supported by thefirst support mechanism 2 and the second support mechanism 3 maymaintain horizontal when the suitcase is placed on an inclined surface.

In some embodiments, when the first support mechanism 2 is in the firstposition, the first support mechanism 2 may form an angle α with respectto the rear surface of the suitcase body 1. When the second supportmechanism 3 is in the third position, the second support mechanism 3 mayform an angle β with respect to the rear surface of the suitcase body 1.α is the same as β such that the suitcase body 1 supported by the firstsupport mechanism 2 and the second support mechanism 3 may maintainhorizontal when the suitcase is placed on a horizontal surface.

In some embodiments, the suitcase may further include at least oneplatform configured on the suitcase body 1 or in the suitcase body 1 ina foldable or extendable manner.

In some embodiments, the suitcase may further include at least onerolling component 7 configured on a bottom surface of the suitcase body1.

Compared to prior arts, the suitcase of the present disclosure may haveat least the following beneficial effects:

Firstly, in the folded state, the first support mechanism 2 and thesecond support mechanism 3 may be folded to align with the rear surfaceof the suitcase body to save space. In the unfolded state, the firstsupport mechanism 2 may be movable to the first position to form a firstleg of the suitcase. The second support mechanism 3 may be movable tothe third position to form a second leg of the suitcase. The suitcasebody 1, the first support mechanism 2, and the second support mechanism3 may form a table. Accordingly, the suitcase may include a platformhaving a function of the table. In addition, the first support mechanism2 may be movable to the second position to form the drawbar of thesuitcase. The suitcase according to some embodiments of the presentdisclosure may be transformed into the table while maintaining itsstorage function.

Furthermore, one or more platforms for placing items may be configuredon or in the suitcase body 1 in a foldable or extendable manner.Accordingly, the suitcase may include multifunctional platforms.

Moreover, the suitcase according to some embodiments of the presentdisclosure may include a charging interface configured on the suitcasebody. Accordingly, a mobile device may be connected to a power supply inthe suitcase more conveniently.

Additionally, the suitcase according to some embodiments of the presentdisclosure may be supported at different heights, and may maintainhorizontal when it is placed on an inclined surface or an unevensurface.

Additional features will be set forth in part in the description whichfollows, and in part will become apparent to those skilled in the artupon examination of the following and the accompanying drawings or maybe learned by production or operation of the examples. The features ofthe present disclosure may be realized and attained by practice or useof various aspects of the methodologies, instrumentalities andcombinations set forth in the detailed examples discussed below.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is further described in terms of exemplaryembodiments. These exemplary embodiments are described in detail withreference to the drawings. These embodiments are non-limiting exemplaryembodiments, in which like reference numerals represent similarstructures throughout the several views of the drawings, and wherein:

FIG. 1 is a schematic diagram of an exemplary suitcase according to someembodiments of the present disclosure;

FIG. 2 is a schematic diagram of an exemplary rotating bracket of afirst connection limit mechanism according to some embodiments of thepresent disclosure;

FIG. 3 is a schematic diagram of an exemplary fixed bracket of a firstconnection limit mechanism according to some embodiments of the presentdisclosure;

FIGS. 4 and 5 are schematic diagrams of an exemplary connectionstructure connecting a rotating bracket and a fixed bracket of a firstconnection limit mechanism according to some embodiments of the presentdisclosure;

FIG. 6 is a front view of a first connection limit mechanism accordingto some embodiments of the present application;

FIG. 7 is a left side view of a first connection limit mechanismaccording to some embodiments of the present application;

FIG. 8 is a schematic diagram of an exemplary first support mechanismaccording to some embodiments of the present disclosure;

FIG. 9 is a schematic diagram of an exemplary first support mechanismaccording to some embodiments of the present disclosure;

FIG. 10 is a schematic diagram of an exemplary first support mechanismaccording to some embodiments of the present disclosure;

FIG. 11 is a schematic diagram of an exemplary second support mechanismaccording to some embodiments of the present disclosure;

FIGS. 12, 13, and 14 are schematic diagrams of an exemplary table formedby a suitcase according to some embodiments of the present disclosure;

FIGS. 15 and 16 are schematic diagrams of exemplary connectionstructures connecting a first support mechanism and a first connectionlimit mechanism according to some embodiments of the present disclosure;

FIGS. 17 and 18 are schematic diagrams of exemplary first supportmechanisms in a folded state according to some embodiments of thepresent disclosure;

FIG. 19 is a schematic diagram of an exemplary connection structureconnecting a first support mechanism and a first connection limitmechanism according to some embodiments of the present disclosure;

FIG. 20 is a schematic diagram of an exemplary first support mechanismin a folded state according to some embodiments of the presentdisclosure;

FIG. 21 is a schematic diagram of an exemplary connection structureconnecting a second support mechanism and a second connection limitmechanism according to some embodiments of the present disclosure;

FIGS. 22 and 23 are schematic diagrams of an exemplary suitcase in whicha drawbar is formed by a first support mechanism according to someembodiments of the present disclosure;

FIG. 24 is a schematic diagram of an exemplary first support mechanismin a second position according to some embodiments of the presentdisclosure;

FIG. 25 is a schematic diagram of an exemplary first support mechanismin a second position according to some embodiments of the presentdisclosure;

FIG. 26 is a schematic diagram of an exemplary suitcase with a storagechamber according to some embodiments of the present disclosure;

FIG. 27 is a schematic diagram of an exemplary first limit structurebeing retractably configured on a first support mechanism according tosome embodiments of the present disclosure;

FIGS. 28 to 34 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure;

FIGS. 35 to 37 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure;

FIGS. 38 to 40 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure;

FIGS. 41 to 43 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure;

FIGS. 44 to 46 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure;

FIGS. 47 to 49 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure; and

FIGS. 50 to 53 are schematic diagrams of exemplary suitcases accordingto some embodiments of the present disclosure.

DETAILED DESCRIPTION

In the following detailed description, numerous specific details are setforth by way of examples in order to provide a thorough understanding ofthe relevant disclosure. However, it should be apparent to those skilledin the art that the present disclosure may be practiced without suchdetails. In other instances, well-known methods, procedures, systems,components, and/or circuitry have been described at a relativelyhigh-level, without detail, in order to avoid unnecessarily obscuringaspects of the present disclosure. Various modifications to thedisclosed embodiments will be readily apparent to those skilled in theart, and the general principles defined herein may be applied to otherembodiments and applications without departing from the spirit and scopeof the present disclosure. Thus, the present disclosure is not limitedto the embodiments shown, but to be accorded the widest scope consistentwith the claims.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of exampleembodiments of the invention. As used herein, the singular forms “a,”“an,” and “the,” are intended to include the plural forms as well,unless the context clearly indicates otherwise. As used herein, theterms “and/or” and “at least one of” include any and all combinations ofone or more of the associated listed items. It will be furtherunderstood that the terms “comprises,” “comprising,” “includes,” and/or“including,” when used herein, specify the presence of stated features,integers, steps, operations, elements, and/or components, but do notpreclude the presence or addition of one or more other features,integers, steps, operations, elements, components, and/or groupsthereof. Also, the term “exemplary” is intended to refer to an exampleor illustration. The term “based on” means “based at least in part on.”The term “one embodiment” means “at least one embodiment.” The term“another embodiment” means “at least one additional embodiment.” Theterm “plurality” means two or more. The term “at least one” means one ormore. The term “multifunctional” means having two or more functions.

It will be understood that, although the terms “first,” “second,”“third,” etc., may be used herein to describe various elements, theseelements should not be limited by these terms. These terms are only usedto distinguish one element from another. For example, a first elementcould be termed as a second element, and, similarly, a second elementcould be termed as a first element, without departing from the scope ofexemplary embodiments of the present disclosure.

These and other features, and characteristics of the present disclosure,as well as the methods of operation and functions of the relatedelements of structure and the combination of parts and economies ofmanufacture, may become more apparent upon consideration of thefollowing description with reference to the accompanying drawings, allof which form a part of this disclosure. It is to be expresslyunderstood, however, that the drawings are for the purpose ofillustration and description only and are not intended to limit thescope of the present disclosure. It is understood that the drawings arenot to scale.

For illustration purposes, the following description is provided to helpbetter understanding a suitcase. It is understood that this is notintended to limit the scope of the present disclosure. For personshaving ordinary skills in the art, a certain amount of variations,changes and/or modifications may be deducted under the guidance of thepresent disclosure. Those variations, changes and/or modifications donot depart from the scope of the present disclosure.

As shown in FIG. 1, a suitcase may include a suitcase body 1, a firstsupport mechanism 2, and a second support mechanism 3.

In some embodiments, the first support mechanism 2 and the secondsupport mechanism 3 may be oppositely configured on a rear surface ofthe suitcase body 1. For example, the first support mechanism 2 may beconfigured on an upper part of the rear surface of the suitcase body 1,and the second support mechanism 3 may be configured on a lower part ofthe rear surface of the suitcase body 1. As another example, the firstsupport mechanism 2 may be configured on a left part of the rear surfaceof the suitcase body 1, and the second support mechanism 3 may beconfigured on a right part of the rear surface of the suitcase body 1.

In some embodiments, the first support mechanism 2 may be movable on thesuitcase body 1 to a first position to form a first leg of the suitcase.The second support mechanism 3 may be movable on the suitcase body 1 toa third position to form a second leg of the suitcase. When the firstsupport mechanism 2 is in the first position and the second supportmechanism 3 is in the third position, the first support mechanism 2 andthe second support mechanism 3 may support the suitcase body 1. In thisarrangement, when the suitcase is placed on the ground, the suitcasebody 1, the first support mechanism 2, and the second support mechanism3 may form a table structure. Accordingly, the suitcase may include aplatform having a function of the table.

In some embodiments, the first support mechanism 2 may be movable on thesuitcase body 1 to a second position to form a drawbar. Accordingly, thesuitcase may have a function of an existing trolley suitcase.

In some embodiments, the first support mechanism 2 may be rotatablyconfigured on the rear surface of the suitcase body 1 via at least onefirst connection limit mechanism 4. The first connection limit mechanism4 may be configured to allow the first support mechanism 2 to be rotatedto the first position or the second position.

In some embodiments, the first connection limit mechanism 4 may includea rotating bracket 43 and a fixed bracket 44. In some embodiments, asshown in FIG. 2, the rotating bracket 43 may include two plates 431 anda bottom plate 432. The two plates 431 may be oppositely configured onthe bottom plate 432, such that the rotating bracket 43 may be of aU-shape. In some embodiments, the rotating bracket 43 may be integrallymolded by bending, stamping, casting, or the like. In some embodiments,each of the two plates 431 may be a single component, and the bottomplate 432 may also be a single component. The two plates 431 and thebottom plate 432 may form the U-shaped rotating bracket 43 by welding,riveting, screwing, or the like.

In some embodiments, one or more first curved parts 4311 may be formedon the rotating bracket 43. For example, the first curved part 4311 maybe formed on each of the two plates 431 of the rotating bracket 43. Insome embodiments, one or more second limit structures 41 and a thirdlimit structure 42 may be configured on the first curved part 4311. Thesecond limit structure 41 may be an arcuate notch, or the like. Thethird limit structure 42 may be an arcuate notch, an arcuate bulge, orthe like.

In some embodiments, a first pin hole 4312 and a first hinge hole 4313may be configured on each of the two plates 431 of the rotating bracket43, respectively. The position of the first pin hole 4312 configured onthe each of the two plates 431 may correspond to each other. Theposition of the first hinge hole 4313 configured on the each of the twoplates 431 may correspond to each other. In some embodiments, a firsthanging hole 4321 may be formed on the bottom plate 432.

In some embodiments, the fixed bracket 44 may be of a U-shape, as shownin FIG. 3. The fixed bracket 44 may be fixed to the rear surface of thesuitcase body 1. In some embodiments, the fixed bracket 44 may include aback plate 442 and two side plates 441. The two side plates 441 may beoppositely configured on the back plate 442. In some embodiments, theback plate 442 and the two side plates 441 may be integrally molded bybending, stamping, casting, or the like. In some embodiments, the backplate 442 may be a single component, and each of the two side plates 441may also be a single component. The back plate 442 and the two sideplates 441 may form the U-shaped fixed bracket 44 by welding, riveting,screwing, or the like.

In some embodiments, a second pin hole 4411 may be configured on each ofthe two side plates 441 of the fixed bracket 44. The position of thesecond pin hole 4411 configured on each of the two side plates 441 maycorrespond to each other. In some embodiments, a second hanging hole4431 may be configured on a raised portion 443 of the fixed bracket 44.In some embodiments, a mounting hole 444 may be configured on the backplate 442 to allow the fixed bracket 44 to be fixed to the suitcase body1 via a threaded connection (e.g., a screw connection, a boltconnection), a riveted connection, or the like. In some embodiments, thefixed bracket 44 may be fixed to the suitcase body 1 by welding, or thelike.

In some embodiments, the rotating bracket 43 may be rotatably connectedto the fixed bracket 44 via a hinge assembly. For example, as shown inFIG. 4 and FIG. 5, the rotating bracket 43 may be rotatably connected tothe fixed bracket 44 via a first pin 445. Specifically, the rotatingbracket 43 may be engaged in a U-shaped groove of the fixed bracket 44.Each of the first pin holes 4312 of the two plates 431 of the rotatingbracket 43 may correspond to each of the second pin holes 4411 of thetwo side plates of the fixed bracket 44, respectively. The first pin 445may pass through the first pin hole 4312 and the second pin hole 4411 toform a hinged connection structure, such that the rotating bracket 43may be rotatably connected to the fixed bracket 44.

In some embodiments, the first connection limit mechanism 4 may furtherinclude an elastic connector 45. In some embodiments, the elasticconnector 45 may be a spring, a shrapnel, or the like. In someembodiments, a first end of the elastic connector 45 may be connected tothe rotating bracket 43, and a second end of the elastic connector 45may be connected to the fixed bracket 44. For example, the first end ofthe elastic connector 45 may be connected to the first hanging hole 4321on the bottom plate 432 of the rotating bracket 43, and the second endof the elastic connector 45 may be connected to the second hanging hole4431 on the raised portion of the back plate 442 of the fixed bracket44. As shown in FIGS. 16 and 18, the first support mechanism 2, therotating bracket 43, and the fixed bracket 44 may form a stable triangleof forces in a mounted state. In addition, the force generated by theelastic connector 45 may help the first support mechanism 2 to berotated and unfolded to the first position and the second position moreeasily. The force generated by the elastic connector 45 may also helpthe first support mechanism 2 to be rotated back to a folded state moreeasily.

In some embodiments, the first end of the elastic connector 45 may beconnected to the first support mechanism 2, and the second end of theelastic connector 45 may be connected to the rear surface of thesuitcase body 1 (shown in FIGS. 30 and 31).

In some embodiments, the first connection limit mechanism 4 may furtherinclude a connection limit base 46. The connection limit base 46 may befixed on the rear surface of the suitcase body 1. In some embodiments,the connection limit base 46 may be fixed on the rear surface of thesuitcase body 1 via a threaded connection (e.g., a screw connection, abolt connection), a riveting method, a welding method, or the like. Insome embodiments, as shown in FIG. 6 and FIG. 7, the connection limitbase 46 may include two plates 461 and a bottom plate 462. The twoplates 461 may be oppositely configured on the bottom plate 462, suchthat the connection limit base 46 may be of a U-shape. In someembodiments, the two plates 461 and the bottom plate 462 may beintegrally molded by bending, stamping, casting, or the like. In someembodiments, each of the two plates 461 may be a single component, andthe bottom plate 462 may also be a single component. The two plates 461and the bottom plate 462 may form the U-shaped connection limit base 46by welding, riveting, screwing, or the like.

In some embodiments, a second curved part 4611 may be formed on theconnection limit base 46. For example, the second curved part 4611 maybe formed on each of the two plates 461 of the connection limit base 46.The one or more second limit structures 41 and the third limit structure42 may be configured on the second curved part 4611. In someembodiments, the second limit structure 41 may be an arcuate notch, orthe like. The third limit structure 42 may be an arcuate notch, anarcuate bulge, or the like. A third hinge hole 4612 may be formed on theeach of the two plates 461. The position of the third hinge hole 4612 onone of the two plates 461 may correspond to the position of the thirdhinge hole 4612 on the other one of the two plates 461, such that theconnection limit base 46 may form a hinge base.

In some embodiments, a fourth limit structure 47 may be configured onthe second curved part 4611. In some embodiments, the fourth limitstructure 47 may be a notch, or the like. The first limit structure 21may be engaged with the fourth limit structure 47 that is configured tomaintain the first support mechanism 2 in a folded state.

In some embodiments, a first limit structure 21 may be configured on thefirst support mechanism 2. The first limit structure 21 may beconfigured to cooperate with the second limit structure 41 and the thirdlimit structure 42 to allow the first support mechanism 2 to be rotatedto the first position or the second position. In some embodiments, thefirst limit structure 21 may be a columnar protrusion, a limit axis, orthe like, as shown in FIG. 4 and FIG. 5. In some embodiment, the firstsupport mechanism 2 may include a first rod 22. The first limitstructure 21, a second hinge hole 221, and a gap 222 may be configuredon a first end of the first rod 22. The first end of the first rod 22may be rotatably attached to the rear surface of the suitcase body 1 viathe first connection limit mechanism 4. For example, as shown in FIG. 4and FIG. 5, the first end of the first rod 22 connected to the firstlimit structure 21 may be inserted in the U-shaped groove of therotating bracket 43. The second hinge hole 221 on the first rod 22 maybe aligned with the first hinge hole 4313 on the rotating bracket 43.The second pin 433 may pass through the first hinge hole 4313 and thesecond hinge hole 221 to form a hinged connection structure. As anotherexample, as shown in FIG. 19 and FIG. 20, the first end of the first rod22 connected to the first limit structure 21 may be inserted in theU-shaped groove of the connection limit base 46. The second hinge hole221 on the first rod 22 may be aligned with the third hinge hole 4612 onthe connection limit base 46. The second pin 433 may pass through thesecond hinge hole 221 and the third hinge hole 4612 to form the hingedconnection structure. A second end of the first rod 22 may be connectedto a handle 23.

In some embodiment, the first support mechanism 2 may further include asecond rod 24. The second rod 24 may have a same structure as the firstrod 22. The first limit structure 21 may be configured on a first end ofthe second rod 24. The first end of the second rod 24 may be rotatablyconnected to another first connection limit mechanism 4. A second end ofthe second rod 24 may be connected to the handle 23, such that the firstrod 22, the handle 23, and the second rod 24 may be of a U-shape, asshown in FIG. 8. The connection between the second rod 24 and the firstconnection limit mechanism 4 may be the same as or similar to theconnection between the first rod 22 and the first connection limitmechanism 4, as shown in FIG. 4, FIG. 5, FIG. 19, and FIG. 20, thedescriptions of which are not be repeated here.

In some embodiments, at least one of the first rod 22 and the second rod24 may be a retractable rod, as shown in FIG. 8 and FIG. 10. In someembodiments, the first rod 22 and the second rod 24 may be retractablerods of the same structure. For example, the first rod 22 (or the secondrod 24) may include a casing 281 and a retractable tube 282. The number(or count) of the retractable tubes 282 may be one, two, three, or more.When there is one retractable tube 282, the retractable tube 282 may beretractably inserted into the casing 281. When there are a plurality ofretractable tubes 282, some of the plurality of retractable tubes 282may be retractably inserted into an outermost retractable tube 282. Theoutermost retractable tube 282 may then be retractably inserted into thecasing 281. In some embodiments, a button 26, a transmission part, and abuckle structure 27 may be configured on a U-shaped drawbar includingthe first rods 22 and the second rod 24. In an extended state, thecasing 281 and the retractable tube 282 may be fixed via the bucklestructure 27. In a contraction state, the button 26 may be pushed torelease an engagement state of the buckle structure 27 via thetransmission part, and the retractable tube 282 may be contracted in thecasing 281.

In some embodiment, the first support mechanism 2 may further include afirst reinforcing rod 25. The first reinforcing rod 25 may be configuredbetween the first rod 22 and the second rod 24. The first reinforcingrod 25, the first rod 22, and the second rod 24 may be of an H-shape,which may increase the structural strength and stability of the firstsupport mechanism 2.

In some embodiments, the first support mechanism 2 may be a U-shapedunitary tube, as shown in FIG. 9. The first limit structure 21, thesecond hinge hole 221, and the gap 222 may be configured on each of twoends of the U-shaped tube, respectively. The connection between thefirst support mechanism 2 and the first connection limit mechanism 4 maybe the same as that of the first rod 22 and the first connection limitmechanism 4, the descriptions of which are not be repeated here.

In some embodiments, as shown in FIG. 27, the first limit structure 21may be retractably configured on the first support mechanism 2. In someembodiments, a control component 251 may be configured on the firstsupport mechanism 2. The control component 251 may be connected to thefirst limit structure 21 via a gear that is configured to allow thecontrol component 251 to control extension or retraction of the firstlimit structure 21. In some embodiments, The portion of the first limitstructure 21 extending beyond the casing 281 may be configured tocooperate with the second limit structure and/or the third limitstructure. When the first limit structure 21 is required to bedisengaged from the second limit structure and the third limitstructure, the first limit structure 21 may be contracted in the casing281 only by pressing the control component 251, which may make the firstsupport mechanism 2 to be rotated on the first connection limitmechanism 4 more easily, and facilitate the unfolding and folding of thefirst support mechanism 2.

In some embodiments, the second support mechanism 3 may be rotatablyconfigured on the rear surface of the suitcase body 1 via at least onesecond connection limit mechanism 5. The second connection limitmechanism 5 may be configured to allow the second support mechanism 3 tobe rotated to the third position. In some embodiments, the third limitstructure 42 may be configured on each of the one or more secondconnection limit mechanisms 5. In some embodiments, the structure of thesecond support mechanism 3 may be the same as or similar to thestructure of the first support mechanism 2. In some embodiments, asshown in FIG. 11, the second support mechanism 3 may include a firstsupport rod 31 and a second support rod 32. In some embodiments, atleast one of the first support rod 31 and the second support rod 32 maybe a unitary tube. In some embodiments, at least one of the firstsupport rod 31 and the second support rod 32 may be a retractable rod.

In some embodiments, a fifth limit structure 33 may be configured oneach of the first support rod 31 and the second support rod 32,respectively. For example, the fifth limit structure 33 may beconfigured on each of a first end of the first support rod 31 and afirst end of the second support rod 32, respectively. The fifth limitstructures 33 may be configured to cooperate with the one or more secondlimit structures 41 and the third limit structures 42 configured on thesecond connection limit mechanisms 5 to allow the second supportmechanism 3 to be rotated to the third position via the secondconnection limit mechanisms 5. In some embodiments, the fifth limitstructure 33 may be a columnar protrusion, a limit axis, or the like.Similar to the first rod 22 and the second rod 24, the second hinge hole221 and the gap 222 may be configured on each of the first end of thefirst support rod 31 and the first end of the second support rod 32,respectively.

In some embodiment, the second support mechanism 3 may further include asecond reinforcing rod 34. The second reinforcing rod 34 may be disposedbetween the first support rod 31 and the second support rod 32. Thefirst support rod 31, the second support rod 32, and the secondreinforcing rod 34 may be of an H-shape, which may increase thestructural strength and stability of the second support mechanism 3.

In some embodiments, the first support mechanism 2, the second supportmechanism 3, and the suitcase body 1 may form a table structure. Forexample, the first support mechanism 2 may be rotatably configured onthe rear surface of the suitcase body 1 via the one or more firstconnection limit mechanisms 4, to allow the first support mechanism 2 tobe rotated to the first position. Accordingly, the first supportmechanism 2 may form the first leg of the suitcase. The second supportmechanism 3 may be rotatably configured on the rear surface of thesuitcase body 1 via the one or more second connection limit mechanisms5, to allow the second support mechanism 3 to be rotated to the secondposition. Accordingly, the second support mechanism 3 may form thesecond leg of the suitcase. The second support mechanism 3 and the firstsupport mechanism 2 may be configured oppositely on the rear surface ofthe suitcase body 1, to allow the first support mechanism 2 and thesecond support mechanism 3 to be rotated and unfolded in oppositedirections. In an unfolded state, as shown in FIGS. 12, 13, and 14, thesecond support mechanism 3 and the suitcase body 1 may form the tablestructure. In some embodiments, the height of the first supportmechanism 2 may be the same as the height of the second supportmechanism 3. The first support mechanism 2 and the second supportmechanism 3 may be configured on a same plane on the rear surface of thesuitcase body 1. In some embodiments, the height of the first supportmechanism 2 may be different from the height of the second supportmechanism 3. The first support mechanism 2 and the second supportmechanism 3 may be configured on different planes on the rear surface ofthe suitcase body 1. For example, the first support mechanism 2 may beconfigured on a first plane on the rear surface of the suitcase body 1,and the second support mechanism 3 may be configured on a second planeon the rear surface of the suitcase body 1. The difference between theheight of the first plane and the height of the second plane may be thesame as the difference between the height of the first support mechanism2 and the height of the second support mechanism 3. Therefore, when thesuitcase is unfolded into the table structure on a flat surface, thesuitcase may maintain horizontal. In some embodiments, a cover of thesuitcase body 1 may be made of light and thin material, such that whenthe cover is in an open state (as shown in FIG. 12), the first supportmechanism 2 and the second support mechanism 3 may support the suitcasebody 1 to be stable.

In some embodiments, the first support mechanism 2 may be rotatablyconfigured on the rear surface of the suitcase body 1 via the one ormore first connection limit mechanism 4. In some embodiments, the firstsupport mechanism 2 may be rotatably connected to the rotating bracket43 of the first connection limit mechanism 4 via a hinge assembly. Forexample, the first end of the first rod 22 connected to the first limitstructure 21 may be rotatably connected to the rotating bracket 43 ofthe first connection limit mechanism 4 via the second pin 433, as shownin FIG. 4, FIG. 5, FIG. 15, and FIG. 16. Similarly, the first end of thesecond rod 24 may be rotatably connected to the rotating bracket 43 ofanother first connection limit mechanism 4 via another second pin 433.The second end of the first rod 22 may be engaged in the U-shaped grooveof the rotating bracket 43 of the first connection limit mechanism 4.The second hinge hole 221 on the first rod 22 may correspond to thefirst hinge hole 4313 on the rotating bracket 43 of the first connectionlimit mechanism 4. The second pin 433 may pass through the second hingehole 221 and the first hinge hole 4313 to form the hinge assembly.Similarly, the second rod 24 may be rotatably connected to the rotatingbracket 43 of another first connection limit mechanism 4 in a samemanner.

As shown in FIGS. 17 and 18, in a folded state, the first limitstructure 21 configured on the first support mechanism 2 may be engagedwith the second limit structure 41 configured on the first connectionlimit mechanism 4. Therefore, the first support mechanism 2 may be closeto the rear surface of the suitcase body 1.

During the rotation of the first support mechanism 2 to the firstposition, the first limit structure 21 may remain engaged in the secondlimit structure 41, and the rotating bracket 43 may be rotated by thefirst pin 445 around the fixed bracket 44 in a direction away from theback of the suitcase body 1 until the rib 4314 on the rotating bracket43 is blocked by the back plate 442 in the fixed bracket 44. Therefore,the first support mechanism 2 may maintain at the first position, andform the first leg of the suitcase, as shown in FIG. 15, and FIG. 16.

In addition, since the first end of the elastic connector 45 may beconnected to the first hanging hole 4321 on the rotating bracket 43, andthe second end of the elastic connector 45 may be connected to thesecond hanging hole 4431 on the raised portion of the fixed bracket 44,in a mounted state, the first support mechanism 2, the rotating bracket43, and the fixed bracket 44 may form the stable triangle of forces. Forexample, as shown in FIG. 16 and FIG. 18, when the first supportmechanism 2 is in the first position in the folded state, the elasticconnector 45 may be in a stretched or compressed state. A first forcepoint A may be formed at a connecting point between the elasticconnector 45 and the fixed bracket 44. A second force point B may beformed at a connecting point between the elastic connector 45 and therotating bracket 43. A third force point C may be formed at a connectingpoint between the rotating bracket 43 and the fixed bracket 44. Thefirst force point A, the second force point B, and the third force pointC may be arranged as a triangle, such that the first support mechanism2, the rotating bracket 43, and the fixed bracket 44 may form a stabletriangle of forces (shown as dotted lines in FIG. 16 and FIG. 18).Therefore, the first support mechanism 2 may be stabilized in the firstposition in the folded state. In addition, the force generated by theelastic connector 45 may help the first support mechanism 2 to berotated and unfolded to the first position and the second position moreeasily. The force generated by the elastic connector 45 may also helpthe first support mechanism 2 to be rotated back to the folded statemore easily. Accordingly, the first support mechanism 2, the rotatingbracket 43, and the fixed bracket 44 may form the stable structure(e.g., a bistable structure) in the folded state and the unfolded state.

In some embodiments, the first support mechanism 2 may be any one of thefirst support mechanisms shown in FIG. 8, FIG. 9, and FIG. 10. The firstconnection limit mechanism 4 may be any one of the connection limitbases 46 shown in FIG. 6 and FIG. 7. For example, the first supportmechanism may be a U-shaped drawbar as shown in the FIG. 8, and thefirst connection limit mechanism 4 may use the connection limit base 46.More descriptions may be found below.

In some embodiments, the first support mechanism 2 may be rotatablyconnected to the rear surface of the suitcase body 1 via the connectionlimit base 46 of the first connection limit mechanism 4. In someembodiments, the first support mechanism 2 may be rotatably connected tothe connection limit base 46 via a hinge assembly. For example, as shownin FIG. 6, FIG. 7, and FIG. 19, the bottom plate 462 of the connectionlimit base 46 may be fixed on the suitcase body 1. The first rod 22 maybe rotatably connected to the connection limit base 46. Specifically,the first end of the first rod 22 connected to the first limit structure21 may be rotatably connected to the connection limit base 46 via thesecond pin 433. The second end of the first rod 22 may be inserted intothe U-shaped groove of the connection limit base 46. The second hingehole 221 of the first rod 22 may correspond to the third hinge holes4612 of the two plates 461 of the connection limit base 46. The secondpin 433 may pass through the second hinge hole 221 and the third hingeholes 4612 to form a hinge assembly. Similarly, the first end of thesecond rod 24 may be rotatably connected to another connection limitbase 46 via another second pin 433.

As shown in FIG. 19, the first limit structure 21 configured on thefirst support mechanism 2 may cooperate with the second limit structure41 configured on the first connection limit mechanism 4, to allow thefirst support mechanism 2 to be fixed in the first position. Therefore,the first support mechanism 2 may form the first leg of the suitcase.

As shown in FIG. 20, in a folded state, the first limit structure 21configured on the first support mechanism 2 may be engaged with thesecond limit structure 41 configured on the first connection limitmechanism 4, such that the first support mechanism 2 may be close to therear surface of the suitcase body 1.

During the rotation of the first support mechanism 2 to the firstposition, the first support mechanism 2 may be rotated about theconnection limit base 46 via the second pin 433 in a direction away fromthe back of the suitcase body 1. When the first support mechanism 2 isrotated to the first position, the first limit structure 21 configuredon the first support mechanism 2 may be engaged in the second limitstructure 41 configured on the first connection limit mechanism 4.Therefore, the first support mechanism 2 may maintain at the firstposition, and form the first leg of the suitcase, as shown in FIG. 19.For example, the second limit structure 41 may be a pin that traversesin a retractable rod in the first support mechanism 2, and two ends ofthe pin may protrude from two ends of the retractable rod to form aconvex structure. In some embodiments, the first limit structure 21 mayhave an arcuate notch structure. When the first support mechanism 2 isrotated to the first position, a portion of the pin that protrudes fromthe end of the retractable rod may be engaged in the arcuate notch.Therefore, the first support mechanism 2 may be fixed in the firstposition, and form the first leg of the suitcase.

In some embodiments, the structure of the second support mechanism 3 maybe the same as or similar to the structure of the first supportmechanism 2. The structure of the second connection limit mechanism 5may be the same as or similar to the structure of the first connectionlimit mechanism 4. In this situation, the connection between the secondsupport mechanism 3 and the second connection limit mechanism 5 may bethe same as or similar to the connection between the first supportmechanism 2 and the first connection limit mechanism 4. The folding andunfolding processes of the second support mechanism 3 and the secondconnection limit mechanism 5 may be the same as or similar to those ofthe first support mechanism 2 and the first connection limit mechanism4, respectively.

In some embodiments, the second support mechanism 3 may have a structureshown in FIG. 11. The second support mechanism 3 may be rotatablyconnected to the one or more second connection limit mechanisms 5 via ahinge assembly. For example, the first end of the first support rod 31connected to the fifth limit structure 33 may be rotatably connected tothe second connection limit mechanism 5 via the second pin 433. Thefirst end of the second support rod 32 may be rotatably connected toanother second connection limit mechanism 5 via another second pin 433.

In addition, the process of the second support mechanism 3 being foldedto the third position via the second connection limit mechanism 5 toform a second leg of the suitcase may be the same as or similar to theprocess of the first support mechanism 2 being folded to the firstposition via the first connection limit mechanism 4 to form the firstleg of the suitcase, the descriptions of which are not be repeated here.

In some embodiments, as shown in FIG.13, in an unfolded state, when thefirst support mechanism 2 is in the first position, the first supportmechanism 2 may form an angle α with respect to the rear surface of thesuitcase body 1.

In some embodiments, the number (or count) of the second limitstructures 41 configured on the first connection limit mechanism 4 maybe more than one, such as 2, 3, 4, 5, 6, or more, such that the firstlimit structure 21 of the first support mechanism 2 may be engaged withthe second limit structures 41 at different positions on the firstconnection limit mechanism 4. Therefore, the first support mechanism 2may be fixed at different angles. That is, when the first supportmechanism 2 is in the first position, the angle α of the first supportmechanism 2 with respect to the rear surface of the suitcase body 1 maybe adjusted by engaging the first limit structure 21 with the secondlimit structures 41 at different positions on the first connection limitmechanism 4.

In some embodiments, as shown in FIG. 13, in the unfolded state, whenthe second support mechanism 3 is in the third position, the secondsupport mechanism 3 may form an angle β with respect to the rear surfaceof the suitcase body 1. In some embodiments, the angle α may be the sameas or different from the angle β. When the angle α and/or the angle βchange, the height of the suitcase body 1 may be changed.

In some embodiments, the number (or count) of the second limitstructures 41 configured on the second connection limit mechanism 5 maybe more than one, such as 2, 3, 4, 5, 6, or more, such that the fifthlimit structure 33 of the second support mechanism 3 may be engaged withthe second limit structures 41 at different positions on the secondconnection limit mechanism 5. Therefore, the second support mechanism 3may be fixed at different angles. That is, when the second supportmechanism 3 is in the third position, the angle β of the second supportmechanism 3 with respect to the rear surface of the suitcase body 1 maybe adjusted by engaging the fifth limit structure 33 with the secondlimit structures 41 at different positions on the second connectionlimit mechanism 5.

In some embodiments, α may be the same as β, such that the suitcase body1 supported by the first support mechanism 2 and the second supportmechanism 3 may maintain horizontal when the suitcase is placed on ahorizontal surface. In some embodiments, a may be different from 13,such that the suitcase body 1 supported by the first support mechanism 2and the first support mechanism 2 may maintain horizontal when thesuitcase is placed on an inclined surface.

In some embodiments, the first support mechanism 2 may form the drawbarof the suitcase. For example, the first support mechanism 2 may berotatably configured on the rear surface of the suitcase body 1 via thefirst connection limit mechanism 4, such that the first supportmechanism 2 may be movable on the suitcase body 1 to the second positionto form the drawer of the suitcase.

In some embodiments, as shown in FIG. 17, FIG. 18, and FIG. 24, afterthe first support mechanism 2 is rotated to the first position, thefirst limit structure 21 may slide out of the second limit structure 41under an action of a larger external force, and the first supportmechanism 2 may continue to be rotated about the second pin 433. Whenthe first limit structure 21 is rotated to the third limit structure 42,the first limit structure 21 may be engaged in the third limit structure42. Accordingly, the first support mechanism 2 may be fixed in thesecond position to form the drawbar of the suitcase, as shown in FIG.22, and FIG. 24. In some embodiments, the first support mechanism 2 maybe rotated from the folded state to the first position via the first pin445. The first support mechanism 2 may be rotated from the firstposition to the second position via the second pin 433.

In some embodiments, as shown in FIG. 19, FIG. 20, and FIG. 25, afterthe first support mechanism 2 is rotated to the first position, thefirst limit structure 21 may slide out of the second limit structure 41of the connection limit base 46 under an action of a larger externalforce (or release the the second limit structure 41 via pressing aswitch device), and the first support mechanism 2 may continue to berotated about the first pin 445. When the second limit structure 41 isrotated to the third limit structure 42 of the connection limit base 46,the second limit structure 41 may be engaged in the third limitstructure 42. Accordingly, the first support mechanism 2 may be fixed inthe second position to form the drawbar of the suitcase, as shown inFIG. 19, FIG. 20, and FIG. 25.

In some embodiments, a mounting slot 10 may be configured on the rearsurface of the suitcase body 1, as shown in FIG. 14. The firstconnection limit mechanism 4 and the second connection limit mechanism 5may be configured in the mounting slot 10. Therefore, in the foldedstate, the first support mechanism 2, the second support mechanism 3 maybe accommodated in the mounting slot 10.

In some embodiments, a fastener 101 may be configured in the mountingslot 10. In some embodiments, the fastener 101 may be made of plastic ormetal slice. In the folded state, the first support mechanism 2 and thesecond support mechanism 3 may be engaged in the fastener101 to preventthe first support mechanism 2 and the second support mechanism 3 fromloosening. In the unfolded state, the first support mechanism 2 and thesecond support mechanism 3 may be taken out from the fastener 101 underan action of an external force.

In some embodiments, the suitcase may further include at least oneplatform. The platform may be configured on the suitcase body 1 or inthe suitcase body 1 in a foldable or extendable manner. For example, asshown in FIG. 12, one or more push-pull boards 61 may be configured onside surfaces of the suitcase body 1. The push-pull board 61 may beaccommodated in the suitcase body 1. When needed, the push-pull board 61may be pulled out of the suitcase body 1 to form the platform forplacing items. The push-pull board 61 may be pushed back into thesuitcase body 1 when it is not needed. As another example, as shown inFIG. 12, a folding board 62 may be configured in the suitcase body 1.When needed, a first side of the folding board 62 may be rotatablyconnected to a first side of the suitcase body 1 via a hinged connectionstructure or a buckle connection structure, and a second side of thefolding board 62 may be connected to a second side of the suitcase body1 via a buckle connection structure 621. Therefore, a platform may beformed in the suitcase body 1 for placing items. The buckle connectionstructure 621 may be unwound and the folding board 62 may be folded intothe suitcase body 1 when it is not needed. As still another example, asshown in FIG. 26, an accommodation space 63 and a cover 64 may beconfigured on an upper part of the rear surface of the suitcase body 1.The cover 64 may be rotatably connected to the suitcase body 1 via ahinged connection structure, a rotating shaft, or the like. When thecover 64 is rotationally unfolded, a platform may be formed on the rearsurface of the suitcase body 1. The platform may be used to place itemssuch as cups. When the cover 64 is rotationally folded, the cover 64 andthe accommodation space 63 may form a storage chamber. The storagechamber may be used to accommodate items such as cups.

In some embodiments, the suitcase may also include at least one rollingcomponent 7, as shown in FIG. 1. The rolling component 7 may beconfigured on a bottom surface of the suitcase body 1. The rollingcomponent 7 may be a roller, a universal wheel, a ladder wheel, or thelike, with or without a locking function. For example, the rollingcomponent 7 may include a brake to stop the suitcase from moving whenthe brake is activated. The number (or count) of the rolling components7 may be one, two, three, four, or more. When the number (or count) ofthe rolling components 7 is one, the rolling component 7 may beinstalled in the middle of a boundary between the bottom surface and therear surface of the suitcase body 1. When the number (or count) of therolling component 7 is two, the rolling components 7 may be installed attwo ends of the boundary between the bottom surface and the rear surfaceof the suitcase body 1. When the number (or count) of the rollingcomponents 7 is three, the rolling components 7 may be installed on thebottom surface of the suitcase body 1 in a triangle arrangement. Whenthe number (or count) of rolling components 7 is four, the rollingcomponents 7 may be installed on the bottom surface of the suitcase bodyin a square or a rectangular arrangement.

FIGS. 28-34 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 28-34, asuitcase 200 may include a suitcase body 200-1, a drawbar 200-2, a firstleg 200-3, and a second leg 200-4. In some embodiments, the first leg200-3 and the second leg 200-4 may be independent of the drawbar 200-2of the suitcase 200. The first leg 200-3 and the second leg 200-4 may beretractable with respect to the suitcase body 200-1, as shown in FIGS.28 and 29. The first leg 200-3 and the second leg 200-4 may be foldablewith respect to the suitcase body 200-1, as shown in FIGS. 28, 32.

In some embodiments, the first leg 200-3 and the second leg 200-4 may beoppositely configured on a rear surface of the suitcase body 200-1.FIGS. 28-29 are schematic diagrams of exemplary legs in a folded stateaccording to some embodiments of the present disclosure. FIG. 32 is aschematic diagram of exemplary legs in a support state according to someembodiments of the present disclosure. The first leg 200-3 and thesecond leg 200-4 may be switched between the folded state and thesupport state under an action of an external force. When the first leg200-3 and the second leg 200-4 are in the support state, the first leg200-3 and the second leg 200-4 may support the suitcase body 200-1, sothat the suitcase body 200-1 may maintain horizontal when the suitcase200 is placed on a surface. Accordingly, the suitcase 200 may have afunction of a table.

In some embodiments, as shown in FIGS. 30-31, the first leg 200-3 may berotatably connected to the suitcase body 200-1. For example, the firstleg 200-3 may be rotatably connected to the suitcase body 200-1 via ahinge assembly. In some embodiments, an elastic connector 200-45 (e.g.,a spring, a shrapnel) may be configured on a connection position of thefirst leg 200-3 and the suitcase body 200-1. A first end of the elasticconnector 200-45 may be connected to the first leg 200-3, and a secondend of the elastic connector 200-45 may be connected to the suitcasebody 200-1. When the first leg 200-3 is in the folded state or thesupport state, the first leg 200-3 and the suitcase body 200-1 may forma stable triangle of forces. When the first leg 200-3 is in the foldedstate (as shown in FIG. 30) or the support state (as shown in FIG. 31),the elastic connector 200-45 may be in a stretched state or an originalstate. A connection point between the elastic connector 200-45 and thefirst leg 200-3 may form a first force point A. A connection pointbetween the elastic connector 200-45 and the suitcase body 200-1 mayform a second force point B. A third force point C may be formed at ashaft of the first leg 200-3. The first force point A, the second forcepoint B, and the third force point C may be arranged in a triangleshape, so that the stable triangle of forces may be formed between thefirst leg 200-3 and the suitcase body 200-1 (shown as solid lines inFIGS. 30-31). Therefore, the first leg 200-3 may remain stable in thefolded state and the support state. In addition, the forces generated bythe elastic connector 200-45 may help the first leg 200-3 to be unfoldedand folded more easily.

In some embodiments, as shown in FIGS. 33-34, the suitcase 200 mayfurther include a charging interface 200-5, a switch 200-6, a storagespace 200-7, a push-pull board 200-8, a leg switch 200-9, or the like,or any combination thereof. For example, the charging interface 200-5may be a USB interface to facilitate a connection of a mobile device toa power source (e.g., a mobile power source) in the suitcase 200. Insome embodiments, a cover may be configured on the charging interface200-5 to prevent dust and rain from entering. The cover may be openedand closed by rotating, pressing, or the like. The switch 200-6 maycontrol the opening or closing of the push-pull board 200-8.Specifically, the switch 200-6 may be engaged or disengaged from thepush-pull board 200-8 by rotating, pressing, or the like. The push-pullboard 200-8 may be rotated and unfolded from the suitcase 200 to form anextended platform for placing items. When the push-pull board 200-8 isnot required, the push-pull board 200-8 may be folded. The storage space200-7 may be configured between the push-pull board 200-8 and thesurface of the suitcase body 200-1. The leg switch 200-9 may beconfigured below the rear surface of the suitcase 200. As shown in FIGS.33-34, the leg switch 200-9 may be engaged or disengaged from a crossbarof the first leg 200-3 to lock the first leg 200-3 and the second leg200-4 in the fold state or to allow the first leg 200-3 and the secondleg 200-4 to be unfolded (e.g., unfolded to the support state) under theaction of an external force (e.g., a human force).

FIGS. 35-37 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 35-37, asuitcase 300 may include a suitcase body 300-1, a drawbar 300-2, a firstleg 300-3, and a second leg 300-4. The drawbar 300-2 may be formed as athird leg of the suitcase 300. The first leg 300-3 and the second leg300-4 may support the suitcase body 300-1. The first leg 300-3 and thesecond leg 300-4 may be foldable with respect to the suitcase body300-1.

In some embodiments, the first leg 300-3 and the second leg 300-4 may beconfigured on a rear surface of the suitcase body 300-1, and opposite tothe drawbar 300-2. The first leg 300-3 and the second leg 300-4 may besymmetrically disposed along a long axis of the rear surface of thesuitcase body 300-1. In some embodiments, the drawbar 300-2, the firstleg 300-3, and the second leg 300-4 may have a retractable structure.The drawbar 300-2, the first leg 300-3, and the second leg 300-4 may beindependently stretched and folded. FIG. 35 is a schematic diagram ofexemplary drawbar and legs in a folded state according to someembodiments of the present disclosure. FIG. 36 is a schematic diagram ofan exemplary drawbar in an unfolded state according to some embodimentsof the present disclosure. FIG. 37 is a schematic diagram of exemplarydrawbar and legs in a support state according to some embodiments of thepresent disclosure. The drawbar 300-2, the first leg 300-3, and thesecond leg 300-4 may be switched between the folded state and thesupport state under an action of an external force, such as a humanforce. When the drawbar 300-2, the first leg 300-3, and the second leg300-4 are in the support state, the drawbar 300-2, the first leg 300-3,and the second leg 300-4 may support the suitcase body 300-1, so thatthe suitcase body 300-1 may maintain horizontal when the suitcase 300 isplaced on a surface. Accordingly, the suitcase 300 may have a functionof a table.

FIGS. 38-40 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 38-40, asuitcase 500 may include a suitcase body 500-1, a drawbar 500-2, a firstleg 500-3, a second leg 500-4, a third leg 500-5, and a fourth leg500-6. In some embodiments, the first leg 500-3, the second leg 500-4,the third leg 500-5, and the fourth leg 500-6 may be independent of thedrawbar 500-2 of the suitcase 500. The first leg 500-3, the second leg500-4, the third leg 500-5, and the fourth leg 500-6 may be retractablewith respect to the suitcase body 500-1. For example, the first leg500-3, the second leg 500-4, the third leg 500-5, and the fourth leg500-6 may be configured at four corners of the suitcase 500, and mayextend from a rear surface of the suitcase 500.

FIG. 38 is a schematic diagram of exemplary drawbar and legs in a foldedstate according to some embodiments of the present disclosure. FIG. 39is a schematic diagram of an exemplary drawbar in an unfolded stateaccording to some embodiments of the present disclosure. FIG. 40 is aschematic diagram of exemplary legs in a support state according to someembodiments of the present disclosure. The first leg 500-3, the secondleg 500-4, the third leg 500-5, and the fourth leg 500-6 may be extendedand retracted under an action of an external force. When the first leg500-3, the second leg 500-4, the third leg 500-5, and the fourth leg500-6 are in the support state, the first leg 500-3, the second leg500-4, the third leg 500-5, and the fourth leg 500-6 may support thesuitcase body 500-1, so that the suitcase 500 may maintain horizontalwhen the suitcase is placed on a surface. Accordingly, the suitcase 500may have a function of a table. In some embodiments, the first leg500-3, the second leg 500-4, the third leg 500-5, and the fourth leg500-6 may be extended and retracted independently, and may be fixed atdifferent lengths. Therefore, the suitcase body 500-1 may be supportedat different heights. Accordingly, the suitcase body 500-1 may maintainhorizontal when the suitcase 500 is placed on an inclined surface or anunflat surface.

FIGS. 41-43 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 41-43, asuitcase 600 may include a suitcase body 600-1, a drawbar 600-2, a firstleg 600-3, and a second leg 600-4. The drawbar 600-2 may be used to forma third leg. The first leg 600-3, the second leg 600-4, and the thirdleg may support the suitcase body 600-1. In some embodiments, the firstleg 600-3 and the second leg 600-4 may be independent of the drawbar600-2 of the suitcase 600. The first leg 600-3 and the second leg 600-4may be retractable with respect to the suitcase body 600-1.

In some embodiments, the first leg 600-3 and the second leg 600-4 may beconfigured at two corners of a rear surface of the suitcase 600, andopposite to the drawbar 600-2. The drawbar 600-2, the first leg 600-3,and the second leg 600-4 may be retracted and/or folded independently.In some embodiments, the drawbar 600-2, the first leg 600-3, and thesecond leg 600-4 may have a retractable structure. FIG. 41 is aschematic diagram of exemplary drawbar and legs in a folded stateaccording to some embodiments of the present disclosure. FIG. 42 is aschematic diagram of an exemplary drawbar in an unfolded state accordingto some embodiments of the present disclosure. FIG. 43 is a schematicdiagram of exemplary drawbar and legs in a support state according tosome embodiments of the present disclosure. The drawbar 600-2, the firstleg 600-3, and the second leg 600-4 may be switched between the foldedstate (e.g., legs are retracted into the suitcase body 600-1) and thesupport state under an action of an external force. When the drawbar600-2, the first leg 600-3, and the second leg 600-4 are in the supportstate, the drawbar 600-2, the first leg 600-3, and the second leg 600-4may support the suitcase body 600-1, so that the suitcase body 600-1 maymaintain horizontal when the suitcase 600 is placed on a surface.Accordingly, the suitcase 600 may have a function of a table.

FIGS. 44-46 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 44-46, asuitcase 900 may include a suitcase body 900-1, a drawbar 900-2, a firstsupport plate 900-3, and a second support plate 900-4. In someembodiments, the first support plate 900-3 and the second support plate900-4 may be independent of the drawbar 900-2 of the suitcase 900. Thefirst support plate 900-3 and the second support plate 900-4 may befoldable with respect to the suitcase body 900-1.

In some embodiments, the first support plate 900-3 and the secondsupport plate 900-4 may be oppositely configured on a rear surface ofthe suitcase body 900-1. FIG. 44 is a schematic diagram of exemplarydrawbar and support plates in a folded state according to someembodiments of the present disclosure. FIG. 45 is a schematic diagram ofan exemplary drawbar in an unfolded state according to some embodimentsof the present disclosure. FIG. 46 is a schematic diagram of exemplarysupport plates in a support state according to some embodiments of thepresent disclosure. The first support plate 900-3 and the second supportplate 900-4 may be switched between the folded state and the supportstate under an action of an external force. When the first support plate900-3 and the second support plate 900-4 are in the support state, thefirst support plate 900-3 and the second support plate 900-4 may supportthe suitcase body 900-1, so that the suitcase 900 may maintainhorizontal when the suitcase 900 is placed on a surface. Accordingly,the suitcase 900 may have a function of a table. In some embodiments,the first support plate 900-3 and the second support plate 900-4 mayhave a flexible plate structure. For example, the first support plate900-3 and the second support plate 900-4 may include two plates that areslidably connected to each other, respectively. In some embodiments, thefirst support plate 900-3 and the second support plate 900-4 may beextended and retracted independently, and may be fixed at differentlengths. Therefore, the suitcase body 900-1 may be supported atdifferent heights. The suitcase body 900-1 may maintain horizontal whenthe suitcase 900 is placed on an inclined surface or an unflat surface.

FIGS. 47-49 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 47-49, asuitcase 1100 may include a suitcase body 1100-1, a drawbar 1100-2, afirst leg 1100-3, and a second leg 1100-4. In some embodiments, thefirst leg 1100-3 and the second leg 1100-4 may be independent of thedrawbar 1100-2 of the suitcase 1100. The first leg 1100-3 and the secondleg 1100-4 may be foldable with respect to the suitcase body 1100-1. Insome embodiments, the first leg 1100-3 and the second leg 1100-4 mayinclude two adjacent and oppositely configured support columns,respectively. When the two support columns are unfolded, the two supportcolumns may form stable legs by fixing the two support columns via a pin(e.g., a pin 1100-5). In some embodiments, an elastic connector (e.g., atorsion spring) may be configured between the support column and thesuitcase body 1100-1. With the help of the elastic connector, thesupport column may cling to the suitcase body 1101-1 when not in use,and the support column may be folded more easily.

In some embodiments, the first leg 1100-3 and the second leg 1100-4 maybe oppositely configured on a rear surface of the suitcase 1100. Thefirst leg 1100-3 and the second leg 1100-4 may be unfolded and foldedindependently. FIG. 47 is a schematic diagram of exemplary drawbar andlegs in a folded state according to some embodiments of the presentdisclosure. FIG. 48 is a schematic diagram of an exemplary drawbar in anunfolded state according to some embodiments of the present disclosure.FIG. 49 is a schematic diagram of exemplary legs in a support stateaccording to some embodiments of the present disclosure. The first leg1100-3 and the second leg 1100-4 may be switched between the foldedstate and the support state under an action of an external force. Whenthe first leg 1100-3 and the second leg 1100-4 are in the support state,the first leg 1100-3 and the second leg 1100-4 may support the suitcasebody 1100-1, so that the suitcase body 1100-1 may maintain horizontalwhen the suitcase 1100 is placed on a surface. Accordingly, the suitcase1100 may have a function of a table.

FIGS. 50-53 are schematic diagrams of exemplary suitcases according tosome embodiments of the present disclosure. As shown in FIGS. 50-53, asuitcase 1200 may include a suitcase body 1200-1 and a drawbar 1200-2.In some embodiments, the drawbar 1200-2 may be foldable with respect tothe suitcase body 1200-1. In some embodiments, the drawbar 1200-2 mayinclude a support frame 1200-3. In some embodiments, the support frame1200-3 may be rotatably connected to the drawbar 1200-2. For example,the drawbar 1200-2 may be folded 90 degrees with respect to the suitcasebody 1200-1 to be perpendicular to the rear surface of the suitcase1200. The support frame 1200-3 may be rotated 90 degrees with respect tothe drawbar 1200-2. In some embodiments, one or more support blocks1200-4 may be configured on the support frame 1200-3. The support block1200-4 may be unfolded in the support state to support the suitcase 1200on the ground.

FIG. 50 is a schematic diagram of an exemplary drawbar in an originalstate according to some embodiments of the present disclosure. FIG. 51is a schematic diagram of an exemplary drawbar in an unfolded stateaccording to some embodiments of the present disclosure. FIG. 52 is aschematic diagram of an exemplary drawbar in a folded state according tosome embodiments of the present disclosure. FIG. 53 is a schematicdiagram of an exemplary drawbar in a support state according to someembodiments of the present disclosure. The drawbar 1200-2 may beswitched between the original state and the support state under anaction of an external force. When the drawbar 1200-2 and the supportframe 1200-3 are in the support state, the drawbar 1200-2 and thesupport frame 1200-3 may support the suitcase body 1200-1, so that thesuitcase body 1200-1 may maintain horizontal when the suitcase 1200 isplaced on a surface. Accordingly, the suitcase 1200 may have a functionof a table.

The beneficial effects of the embodiments in the present disclosure mayinclude, but are not limited to:

Firstly, in the folded state, the first support mechanism 2 and thesecond support mechanism 3 may be folded to align with the rear surfaceof the suitcase body to save space. In the unfolded state, the firstsupport mechanism 2 may be movable to the first position to form a firstleg of the suitcase. The second support mechanism 3 may be movable tothe third position to form a second leg of the suitcase. The suitcasebody 1, the first support mechanism 2, and the second support mechanism3 may form a table. Accordingly, the suitcase may include a platformhaving a function of the table. In addition, the first support mechanism2 may be movable to the second position to form the drawbar of thesuitcase. The suitcase according to some embodiments of the presentdisclosure may be transformed into the table while maintaining itsstorage function.

Furthermore, one or more platforms for placing items may be configuredon or in the suitcase body 1 in a foldable or extendable manner.Accordingly, the suitcase may include multifunctional platforms.

Moreover, the suitcase according to some embodiments of the presentdisclosure may include a charging interface configured on the suitcasebody. Accordingly, a mobile device may be connected to a power supply inthe suitcase more conveniently.

Additionally, the suitcase according to some embodiments of the presentdisclosure may be supported at different heights, and may maintainhorizontal when it is placed on an inclined surface or an unevensurface.

It should be noted that different embodiments may have differentbeneficial effects. The beneficial effects of an embodiment in thepresent disclosure may include any combination of the beneficial effectsdescribed above, or any other beneficial effects that may be obtained.

Having thus described the basic concepts, it may be rather apparent tothose skilled in the art after reading this detailed disclosure that theforegoing detailed disclosure is intended to be presented by way ofexample only and is not limiting. Various alterations, improvements, andmodifications may occur and are intended to those skilled in the art,though not expressly stated herein. These alterations, improvements, andmodifications are intended to be suggested by this disclosure and arewithin the spirit and scope of the exemplary embodiments of thisdisclosure.

Moreover, certain terminology has been used to describe embodiments ofthe present disclosure. For example, the terms “one embodiment,” “anembodiment,” and/or “some embodiments” mean that a particular feature,structure or characteristic described in connection with the embodimentis included in at least one embodiment of the present disclosure.Therefore, it is emphasized and should be appreciated that two or morereferences to “an embodiment” or “one embodiment” or “an alternativeembodiment” in various portions of this specification are notnecessarily all referring to the same embodiment. Furthermore, theparticular features, structures or characteristics may be combined assuitable in one or more embodiments of the present disclosure.

Furthermore, the recited order of processing elements or sequences, orthe use of numbers, letters, or other designations, therefore, is notintended to limit the claimed processes and methods to any order exceptas may be specified in the claims. Although the above disclosurediscusses through various examples what is currently considered to be avariety of useful embodiments of the disclosure, it is to be understoodthat such detail is solely for that purpose and that the appended claimsare not limited to the disclosed embodiments, but, on the contrary, areintended to cover modifications and equivalent arrangements that arewithin the spirit and scope of the disclosed embodiments. For example,although the implementation of various components described above may beembodied in a hardware device, it may also be implemented as a softwareonly solution, for example, an installation on an existing server ormobile device.

Similarly, it should be appreciated that in the foregoing description ofembodiments of the present disclosure, various features are sometimesgrouped in a single embodiment, figure, or description thereof for thepurpose of streamlining the disclosure aiding in the understanding ofone or more of the various inventive embodiments. This method ofdisclosure, however, is not to be interpreted as reflecting an intentionthat the claimed subject matter requires more features than areexpressly recited in each claim. Rather, inventive embodiments lie inless than all features of a single foregoing disclosed embodiment.

In some embodiments, the numbers expressing quantities or propertiesused to describe and claim certain embodiments of the application are tobe understood as being modified in some instances by the term “about,”“approximate,” or “substantially.” For example, “about,” “approximate,”or “substantially” may indicate ±20% variation of the value itdescribes, unless otherwise stated. Accordingly, in some embodiments,the numerical parameters set forth in the written description andattached claims are approximations that may vary depending upon thedesired properties sought to be obtained by a particular embodiment. Insome embodiments, the numerical parameters should be construed in lightof the number of reported significant digits and by applying ordinaryrounding techniques. Notwithstanding that the numerical ranges andparameters setting forth the broad scope of some embodiments of theapplication are approximations, the numerical values set forth in thespecific examples are reported as precisely as practicable.

Each of the patents, patent applications, publications of patentapplications, and other material, such as articles, books,specifications, publications, documents, things, and/or the like,referenced herein is hereby incorporated herein by this reference in itsentirety for all purposes, excepting any prosecution file historyassociated with same, any of same that is inconsistent with or inconflict with the present document, or any of same that may have alimiting affect as to the broadest scope of the claims now or laterassociated with the present document. By way of example, should there beany inconsistency or conflict between the description, definition,and/or the use of a term associated with any of the incorporatedmaterial and that associated with the present document, the description,definition, and/or the use of the term in the present document shallprevail.

In closing, it is to be understood that the embodiments of theapplication disclosed herein are illustrative of the principles of theembodiments of the application. Other modifications that may be employedmay be within the scope of the application. Thus, by way of example, butnot of limitation, alternative configurations of the embodiments of theapplication may be utilized in accordance with the teachings herein.Accordingly, embodiments of the present application are not limited tothat precisely as shown and described.

1. A suitcase including a suitcase body and a support mechanism; thesupport mechanism is configured to support the suitcase body; and thesupport mechanism is retractable and/or foldable with respect to thesuitcase body.
 2. The suitcase of claim 1, wherein at least a portion ofthe support mechanism is configured as a drawbar of the suitcase.
 3. Thesuitcase of claim 1, wherein the suitcase body maintains horizontal bysupport of the support mechanism when the suitcase is placed on asurface.
 4. The suitcase of claim 1, wherein: the support mechanismincludes a first support mechanism and a second support mechanism; thefirst support mechanism and the second support mechanism are oppositelyconfigured on a rear surface of the suitcase body; the first supportmechanism is movable to a first position to form a first leg and asecond position to form a drawbar of the suitcase; and the secondsupport mechanism is movable to a third position to form a second leg ofthe suitcase.
 5. The suitcase of claim 4, wherein: the first supportmechanism is rotatably configured on the rear surface of the suitcasebody via at least one first connection limit mechanism; and the at leastone first connection limit mechanism is configured to allow the firstsupport mechanism to be rotated to the first position or the secondposition.
 6. The suitcase of claim 5, wherein: the first supportmechanism is rotatably connected to the at least one first connectionlimit mechanism via a first hinge assembly; a first limit structure isconfigured on the first support mechanism; a second limit structure anda third limit structure are configured on each of the at least one firstconnection limit mechanism; and the first limit structure is configuredto cooperate with the second limit structure and the third limitstructure to allow the first support mechanism to be rotated to thefirst position or the second position.
 7. The suitcase of claim 6,wherein: at least one of the at least one first connection limitmechanism includes a rotating bracket and a fixed bracket; the rotatingbracket is of a U-shape; a first curved part is formed on the rotatingbracket; the second limit structure and the third limit structure areconfigured on the first curved part; the fixed bracket is of a U-shape;the fixed bracket is fixed to the rear surface of the suitcase body; therotating bracket is rotatably connected to the fixed bracket via asecond hinge assembly; the first support mechanism is rotatablyconnected to the rotating bracket via a third hinge assembly; and thefirst limit structure is engaged with the second limit structure so asto allow the first support mechanism to drive the rotating bracket to berotated to the first position.
 8. The suitcase of claim 7, wherein: atleast one of the at least one first connection limit mechanism includesan elastic connector; a first end of the elastic connector is connectedto the rotating bracket, and a second end of the elastic connector isconnected to the fixed bracket; and the first support mechanism, therotating bracket, and the fixed bracket are configured to form a stablestructure.
 9. The suitcase of claim 6, wherein: at least one of the atleast one first connection limit mechanism includes a connection limitbase of a U-shape; a second curved part is formed on the connectionlimit base; the second limit structure and the third limit structure areconfigured on the second curved part; the connection limit base is fixedon the rear surface of the suitcase body; and the first supportmechanism is rotatably connected to the connection limit base via afourth hinge assembly.
 10. The suitcase of claim 9, wherein: a fourthlimit structure is configured on the second curved part; and the firstlimit structure is engaged with the fourth limit structure that isconfigured to maintain the first support mechanism in a folded state.11. The suitcase of claim 6, wherein: the first support mechanismincludes a first rod and a second rod; the first limit structure isattached to the first rod and the second rod; a first end of the firstrod connected to the first limit structure is rotatably attached to therear surface of the suitcase body via one of the at least one firstconnection limit mechanism; a first end of the second rod connected tothe first limit structure is rotatably configured on the rear surface ofthe suitcase body via another one of the at least one first connectionlimit mechanism; a second end of the first rod is connected to a handle;and a second end of the second rod is connected to the handle such thatthe first rod, the handle, and the second rod form a U-shaped structure.12. The suitcase of claim 11, wherein: the first support mechanismincludes a first reinforcing rod; and the first reinforcing rod isconfigured between the first rod and the second rod.
 13. The suitcase ofclaim 12, wherein at least one of the first rod or the second rod is aretractable rod.
 14. The suitcase of claim 6, wherein: the first limitstructure is retractably configured on the first support mechanism; acontrol component is further configured on the first support mechanism;and the control component is connected to the first limit structure viaa gear that is configured to allow the control component to controlextension or retraction of the first limit structure.
 15. The suitcaseof claim 4, wherein: the second support mechanism is rotatablyconfigured on the rear surface of the suitcase body via at least onesecond connection limit mechanism; and the at least one secondconnection limit mechanism is configured to allow the second supportmechanism to be rotated to the third position.
 16. The suitcase of claim15, wherein at least one of the at least one second connection limitmechanism has a same structure as at least one of the at least one firstconnection limit mechanism. 17-22. (canceled)
 23. The suitcase of claim1, wherein: the support mechanism includes at least two legs; the atleast two legs are independent of a drawbar of the suitcase; and the atleast two legs are retractable and/or foldable with respect to thesuitcase body.
 24. The suitcase of claim 23, wherein: the supportmechanism includes four legs; the four legs are configured at fourcorners of the suitcase; and the four legs are retractable with respectto the suitcase body.
 25. The suitcase of claim 1, wherein: the supportmechanism includes a leg; and the leg is configured at a center of asurface of the suitcase body.
 26. A suitcase including a suitcase body,a first support mechanism, and a second support mechanism, wherein: thefirst support mechanism and the second support mechanism are oppositelyconfigured on a rear surface of the suitcase body; the first supportmechanism is movable to a first position to form a first leg of thesuitcase via at least one first connection limit mechanism; the secondsupport mechanism is movable to a third position to form a second leg ofthe suitcase; at least one of the at least one first connection limitmechanism includes an elastic connector; a first end of the elasticconnector is connected to the first support mechanism, and a second endof the elastic connector is connected to the rear surface of thesuitcase body; and the first support mechanism, and the rear surface ofthe suitcase body are configured to form a stable structure. 27-40.(canceled)